U.S. patent application number 11/950589 was filed with the patent office on 2008-08-21 for patient connection for the artificial respiration of a patient.
This patent application is currently assigned to DRAGER MEDICAL AG & CO. KG. Invention is credited to Gotz KULLIK, Olaf SCHERMEIER.
Application Number | 20080200776 11/950589 |
Document ID | / |
Family ID | 38834780 |
Filed Date | 2008-08-21 |
United States Patent
Application |
20080200776 |
Kind Code |
A1 |
SCHERMEIER; Olaf ; et
al. |
August 21, 2008 |
PATIENT CONNECTION FOR THE ARTIFICIAL RESPIRATION OF A PATIENT
Abstract
A breathing gas-carrying patient connection (2) for the
artificial respiration of a patient (1) by means of an anesthesia
apparatus or respirator (3) with one or more sensors (9, 10, 11)
for detecting patient-relevant measured variables and with means
for the telemetric transmission of the sensor data from the patient
connection (2) to a machine-side connection element (13) for the
patient connection (2), wherein the means for the telemetric
transmission of the sensor data are designed for wireless
bidirectional communication between the patient connection (2) and
the connection element (13), makes possible the reliable
transmission of data into the machine-side connection element
(13).
Inventors: |
SCHERMEIER; Olaf; (Lubeck,
DE) ; KULLIK; Gotz; (Lubeck, DE) |
Correspondence
Address: |
MCGLEW & TUTTLE, PC
P.O. BOX 9227, SCARBOROUGH STATION
SCARBOROUGH
NY
10510-9227
US
|
Assignee: |
DRAGER MEDICAL AG & CO.
KG
Lubeck
DE
|
Family ID: |
38834780 |
Appl. No.: |
11/950589 |
Filed: |
December 5, 2007 |
Current U.S.
Class: |
600/301 |
Current CPC
Class: |
A61M 16/0833 20140204;
A61M 16/01 20130101; A61M 2230/50 20130101; A61M 16/06 20130101;
A61M 2016/0027 20130101; A61M 2205/14 20130101; A61M 2205/3569
20130101; A61M 16/107 20140204; A61M 2230/04 20130101; A61M
2205/3592 20130101; A61M 2205/6018 20130101; A61M 2205/6054
20130101; A61M 2205/3368 20130101; A61M 2230/40 20130101; A61M
16/1055 20130101; A61M 16/1065 20140204; A61M 2205/60 20130101;
A61M 16/0003 20140204; A61M 2230/65 20130101; A61M 16/0465
20130101; A61M 16/0875 20130101; A61M 2230/205 20130101; A61M 16/08
20130101 |
Class at
Publication: |
600/301 |
International
Class: |
A61B 5/00 20060101
A61B005/00 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 17, 2007 |
DE |
10 2007 007 969.0 |
Claims
1. A patient connection device for the artificial respiration of a
patient with an anesthesia apparatus or respirator having a
machine-side connection element, the patient connection device
comprising: a patient connection element for applying to an air
passage of a patient; one or more sensors located on said patient
connection element for detecting patient-relevant measured
variables; a telemetric transmission means for telemetrically
transmitting said patient-relevant measured variables from said
patient connection element to said machine-side connection element
such that said respirator receives said patient-relevant measured
variables, said sensor data transmission means being in
bidirectional communication with said patient connection element
and said machine-side connection element.
2. A patient connection device in accordance with claim 1, wherein
said patient-relevant measured variables include identification
information.
3. A patient connection device in accordance with claim 2, wherein
said telemetric transmission means changes the identification
information.
4. A patient connection device in accordance with claim 1, wherein
said telemetric transmission means wirelessly transmits energy from
said connection element into said patient connection such that said
one or more sensors are powered via said wireless energy
transmission.
5. A patient connection in accordance with claim 1, further
comprising an energy storage means and/or a data memory.
6. A patient connection in accordance with claim 1, wherein said
patient connection element is an endotracheal tube, a tracheotomy
cannula or a full face, nasal or larynx mask.
7. A patient connection in accordance with claim 1, wherein said
connection element comprises at least one Y-piece, a breathing tube
or a breathing system.
8. A patient connection in accordance with claim 1, wherein said
telemetric transmission means is designed as inductive or
capacitive elements.
9. A patient connection in accordance with claim 1, wherein at
least one of said sensors is a temperature sensor, an oxygen
saturation sensor, a pulmonary internal pressure sensor and/or an
electrode.
10. A patient connection in accordance with claim 9, wherein one or
more electrodes are provided, said one or more electrodes being an
electrocardiogram (ECG) electrode or an electroimpedance tomography
(EIT) electrode.
11. A device for the artificial respiration of a patient, the
device comprising: a respirator with a respirator connection
receiver portion; a patient connection insertion element connected
to said respirator connection receiver portion, said patient
connection insertion element having a patient insertion end in
contact with the patient; a sensor located at said patient
insertion end of said patient connection insertion element, said
sensor sensing a patient parameter to define patient sensor data; a
wireless telemetric transmission means for wireless bidirectional
telemetric communication between said patient connection insertion
element and said respirator connection receiver portion such that
said patient sensor data passes from said sensor located at said
patient insertion end to said respirator connection receiver
portion, whereby said respirator receives said patient sensor
data.
12. A device in accordance with claim 11, wherein said patient
insertion end of said patient connection insertion element has an
inflatable gasket, said sensor being a temperature sensor for
measuring a body core temperature of the patient, said temperature
sensor being located on an outer surface of said inflatable gasket,
said inflatable gasket being in an inflated state when said patient
connection insertion element is in contact with the patient, said
temperature sensor being in contact with the patient when said
inflatable gasket is in said inflated state.
13. A device in accordance with claim 11, wherein said wireless
telemetric transmission means includes a first antenna located
within said patient connection insertion element and a second
antenna located within said respirator connection receiver portion,
said first antenna being located at an end of said patient
connection insertion element opposite said patient insertion end,
said first antenna being opposite said second antenna.
14. A device in accordance with claim 13, wherein said second
antenna is electrically connected to said respirator via a first
electric line extending within said respirator connection receiver
portion, said sensor being electrically connected via a second
electric line, said second electric line extending within said
patient connection insertion element from said first antenna to
said sensor.
15. A device in accordance with claim 12, further comprising an
electrode, said electrode being one of an electroimpedance
tomography electrode, an electrocardiogram electrode and an
impedance cardiography electrode, said electrode being located on
said outer surface of said inflatable gasket opposite said
temperature sensor, said electrode being in contact with the
patient when said inflatable gasket is in said inflated state.
16. A device in accordance with claim 13, further comprising a
breathing gas humidifier and a plurality of bacteria filters, said
respirator connection element including a Y-piece connection
element having a first branch connection portion and a second
branch connection portion, said second antenna being located within
said first branch connection portion, one of said bacteria filters
being connected to said first branch connection portion, another of
said bacteria filters being connected to said second branch
connection portion, said breathing gas humidifier being connected
to said second branch connection portion.
17. A device in accordance with claim 11, further comprising a data
storage and energy means for storing energy and for storing said
patient sensor data, said patient data including manufacturing data
of said patient connection insertion element and information
relating to a number of uses of said patient connection insertion
element.
18. A device in accordance with claim 11, wherein said wireless
telemetric transmission means wirelessly transmits energy from said
respirator connection receiver portion to said patient connection
insertion element such that said sensor is powered via said
wireless energy transmission.
19. A device in accordance with claim 11, wherein said patient
connection insertion element is an endotracheal tube, a tracheotomy
cannula or a full face, nasal or larynx mask.
20. A device for the artificial respiration of a patient, the
device comprising: a respirator; a patient respirator connection
structure connecting said respirator to the patient, said patient
respirator connection structure having a patient receiving portion
and a respirator connection portion, said respirator connection
portion being connected to a machine side of said respirator, said
patient receiving portion being in contact with the patient; a
plurality of sensors located at an end of said patient receiving
portion, each sensor sensing a patient parameter to define patient
sensor data; a wireless telemetric transmitter telemetrically
transmitting said patient sensor data from said plurality of
sensors located on said patient receiving portion to said
respirator connection portion such that said respirator receives
said patient sensor data, said wireless telemetric transmitter
being in bidirectional communication with said plurality of sensors
located on said patient receiving portion and said respirator; a
display means for displaying said patient sensor data.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of priority under 35
U.S.C. .sctn. 119 of German Patent Application DE 10 2007 007 969.0
filed Feb. 17, 2007, the entire contents of which are incorporated
herein by reference.
FIELD OF THE INVENTION
[0002] The present invention pertains to a breathing gas-carrying
patient connection for the artificial respiration of a patient.
BACKGROUND OF THE INVENTION
[0003] The measurement of physiological variables, for example, the
airway pressure and the flow through the airways, the breathing gas
temperature, the body core temperature, the oxygen saturation and
ECG (Electrocardiogram) are of great significance for the therapy
of patients with respiration support, hereinafter called generally
artificial respiration. These measurements are carried out, in
general, with individual sensors at individual cables independently
from the breathing tubes for the respiration support.
[0004] The treatment parameters and data arising for a certain
patient from the type of the patient connection are entered
manually by the attending staff in the respiration support device,
i.e., especially an anesthesia apparatus or a respirator.
[0005] The individual sensors used with their cables lead to
error-prone and cluttered situations in hospitals (so-called
"spaghetti syndrome"), and the need to enter device data and
therapy data takes time and requires attention on the part of the
attending staff. A tube with a device for detecting the
endotracheal pressure and the breath flow is disclosed in DE 199 51
578 C1. In this device a differential pressure sensor is arranged
in a liquid-proof manner in the tube wall close to the tip of the
tube and a differential pressure sensor is arranged close to the
base and the two sensors are coupled pneumatically via a duct in
the tube wall. This duct is connected to the atmosphere via an
opening. A transmitter is provided for the telemetric transmission
of the measured data.
SUMMARY OF THE INVENTION
[0006] The object of the present invention is to provide a
breathing gas-carrying patient connection for the artificial
respiration of a patient, which detects, on the one hand, various
patient-relevant measured variables in a non-invasive manner and,
on the other hand, makes possible the reliable transmission of data
directly from the patient connection into a machine-side connection
element.
[0007] According to the invention, a patient connection device is
provided for the artificial respiration of a patient with an
anesthesia apparatus or respirator having a machine-side connection
element. The patient connection device may comprise a patient
connection element for applying to an air passage of a patient. One
or more sensors may be located on the patient connection element
for detecting patient-relevant measured variables. A telemetric
transmission means may be provided for telemetrically transmitting
the patient-relevant measured variables from the patient connection
element to the machine-side connection element such that the
respirator receives the patient-relevant measured variables. The
sensor data transmission means may be in bidirectional
communication with the patient connection element and the
machine-side connection element.
[0008] The patient-relevant measured variables may include
identification information.
[0009] The telemetric transmission means may change the
identification information.
[0010] The telemetric transmission means may wirelessly transmit
energy from the connection element into the patient connection such
that the one or more sensors are powered via the wireless energy
transmission.
[0011] The patient connection may further comprise an energy
storage means and/or a data memory.
[0012] The patient connection element may be an endotracheal tube,
a tracheotomy cannula or a full face, nasal or larynx mask.
[0013] The connection element may comprise at least one Y-piece, a
breathing tube or a breathing system.
[0014] The telemetric transmission means may be designed as
inductive or capacitive elements.
[0015] At least one of the sensors may be a temperature sensor, an
oxygen saturation sensor, a pulmonary internal pressure sensor
and/or an electrode.
[0016] One or more electrodes may be provided. The one or more
electrodes may be an electrocardiogram (ECG) electrode or an
electroimpedance tomography (EIT) electrode.
[0017] According to the invention, a device for the artificial
respiration of a patient is provided. The device may comprise a
respirator with a respirator connection receiver portion. A patient
connection insertion element may be connected to the respirator
connection receiver portion. The patient connection insertion
element may have a patient insertion end in contact with the
patient. A sensor may be located at the patient insertion end of
the patient connection insertion element. The sensor may sense a
patient parameter to define patient sensor data. A wireless
telemetric transmission means may be provided for wireless
bidirectional telemetric communication between the patient
connection insertion element and the respirator connection receiver
portion such that the patient sensor data passes from the sensor
located at the patient insertion end to the respirator connection
receiver portion. The respirator may receive the patient sensor
data.
[0018] The patient insertion end of the patient connection
insertion element may have an inflatable gasket. The sensor may be
a temperature sensor for measuring a body core temperature of the
patient. The temperature sensor may be located on an outer surface
of the inflatable gasket. The inflatable gasket may be in an
inflated state when the patient connection insertion element is in
contact with the patient. The temperature sensor may be in contact
with the patient when the inflatable gasket is in the inflated
state.
[0019] The wireless telemetric transmission means may include a
first antenna located within the patient connection insertion
element and a second antenna located within the respirator
connection receiver portion. The first antenna may be located at an
end of the patient connection insertion element opposite the
patient insertion end. The first antenna may be opposite the second
antenna.
[0020] The second antenna may be electrically connected to the
respirator via a first electric line extending within the
respirator connection receiver portion. The sensor may be
electrically connected via a second electric line. The second
electric line may extend within the patient connection insertion
element from the first antenna to the sensor.
[0021] The device may comprise an electrode. The electrode may be
one of an electroimpedance tomography electrode, an
electrocardiogram electrode and an impedance cardiography
electrode. The electrode may be located on the outer surface of the
inflatable gasket opposite the temperature sensor. The electrode
may be in contact with the patient when the inflatable gasket is in
the inflated state.
[0022] The device may further comprise a breathing gas humidifier
and a plurality of bacteria filters. The respirator connection
element may include a Y-piece connection element having a first
branch connection portion and a second branch connection portion.
The second antenna may be located within the first branch
connection portion. One of the bacteria filters may be connected to
the first branch connection portion. Another of the bacteria
filters may be connected to the second branch connection portion.
The breathing gas humidifier may be connected to the second branch
connection portion.
[0023] The device may further comprise a data storage and energy
means for storing energy and for storing the patient sensor data.
The patient data may include manufacturing data of the patient
connection insertion element and information relating to a number
of uses of the patient connection insertion element.
[0024] The wireless telemetric transmission means may wirelessly
transmit energy from the respirator connection receiver portion to
the patient connection insertion element such that the sensor is
powered via the wireless energy transmission.
[0025] The patient connection insertion element may be an
endotracheal tube, a tracheotomy cannula or a full face, nasal or
larynx mask.
[0026] According to the invention, a device is provided for the
artificial respiration of a patient. The device may comprise a
respirator and a patient respirator connection structure connecting
the respirator to the patient. The patient respirator connection
structure may have a patient receiving portion and a respirator
connection portion. The respirator connection portion may be
connected to a machine side of the respirator. The patient
receiving portion may be in contact with the patient. A plurality
of sensors may be located at an end of the patient receiving
portion. Each sensor may sense a patient parameter to define
patient sensor data. A wireless telemetric transmitter may be
provided for telemetrically transmitting the patient sensor data
from the plurality of sensors located on the patient receiving
portion to the respirator connection portion such that the
respirator receives the patient sensor data. The wireless
telemetric transmitter may be in bidirectional communication with
the plurality of sensors located on the patient receiving portion
and the respirator. A display means may be provided for displaying
the patient sensor data.
[0027] An essential advantage of the present invention is that a
breathing gas-carrying patient connection follows from the
structural integration of different sensors and the preferred
integration of a data memory and preferably of an energy storage
means with a corresponding interface for data and energy between
the patient connection and the anesthesia apparatus or respirator
performing the artificial respiration.
[0028] A breathing gas-carrying patient connection is defined
especially as an endotracheal tube, called "tube" for short, a
tracheotomy cannula or a full face, nasal or larynx mask used for
the respiration.
[0029] The various features of novelty which characterize the
invention are pointed out with particularity in the claims annexed
to and forming a part of this disclosure. For a better
understanding of the invention, its operating advantages and
specific objects attained by its uses, reference is made to the
accompanying drawings and descriptive matter in which the preferred
embodiment of the invention is illustrated.
BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In the drawings:
[0031] FIG. 1 is a schematic view showing an intubated patient
connected to a respirator;
[0032] FIG. 2 is a cross sectional view showing a detail through
the tip of the tube; and
[0033] FIG. 3 is a cross sectional view showing a detail through
the electrically non-conductive antenna connection between the tube
connector and the Y-piece.
DESCRIPTION OF THE PREFERRED EMBODIMENT
[0034] Referring to the drawings in particular, FIG. 1 shows a
patient 1 with a patient connection 2 designed as a tube in the
trachea 8 (FIG. 2). The sensor data and electric energy are
transmitted in a contactless and field-based manner into and from
the respirator 3 via the first electric line 7 in the expiration
branch, because an active breathing gas humidifier 6 is inserted in
the inspiration branch. The inspiration branch and the expiration
branch are equipped with bacteria filters 5. The respirator 3 is,
for example, a home respirator. The data transfer into the
respirator 3 is carried out by means of a plug-type contact 4 or,
as an alternative, likewise in a field-based and contactless
manner, especially inductively. A display 26 is connected to the
respirator 3 to display patient sensor data.
[0035] FIG. 2 shows a sectional view of a detail through the tip of
the patient connection 2 designed according to this embodiment as a
tube in the trachea 8 of the patient 1. A sensor is a pulmonary
internal pressure sensor 10, which according to this embodiment is
arranged on the inside of the tube in order to perform the
measurement there possibly unaffected by body fluids that are
present. The temperature sensor 11 for measuring the body core
temperature is placed on the outside of the inflatable gasket 24 of
the tube in order to have optimal contact with the body tissue
there. An ECG electrode is likewise positioned on the outside of
the inflatable gasket of the tube. The electrode 9 may also be one
of several ECG electrodes. The electrode 9 may also be an EIT
(electroimpedance tomography) electrode, which is used, e.g., to
supply electric power or as a counterelectrode in an EIT system.
The at least one electrode 9 may also be used for impedance
cardiography (ICG), which is known per se. The second electric line
12 in the tube wall is used to derive the sensor signals and to
send energy to the sensors.
[0036] FIG. 3 shows a sectional view of a detail through the
electrically non-conductive, preferably inductive antenna
connection between the tube connector 22 and the connection element
13, which is designed as a Y-piece here. The antenna connection is
established by means of the first antenna 15 in the Y-piece and the
second antenna 16 in the tube connector 22. The data memory and
energy storage means 14 is located in the tube and is connected to
the second antenna 16 and to the sensors by means of the second
electric line 12. The electric lines 7 and 12 are preferably
integrated in the wall of the expiration branch or of the tube.
Sensor data containing identification information, such as static
specific data on the patient connection 2 itself, for example,
geometric or physical characteristics, information on use,
manufacturer data, manufacturing and shelf life data, etc., as well
as variable information, for example, patient data, respiration
parameters and information on the preparation performed in case of
multiple usability of the patient connection 2, may be stored in
the data memory and energy storage means 14. The sensor data
optionally contain information on the measured patient data during
a time period during which the antenna connection was interrupted
(data logger function). The energy storage means is also used
especially for the temporary operation of the sensors 9, 10, 11
when the line connection to the respirator 3 is interrupted, for
example, when the patient 1 shall be connected to another
respirator 3. An additional energy storage means in the form of a
miniaturized battery or a capacitor with very high capacity may
optionally be provided.
[0037] It is especially advantageous to use the electromagnetically
operated transponder technique by means of so-called RFID (Radio
Frequency Identification) tags.
[0038] The antenna connection between the tube or the tube
connector 22 and the connection element 13 to the respirator 3,
which the connection element is designed as a Y-piece here,
contains especially coils, capacitors for magnetic, electromagnetic
and/or capacitive coupling. Optical elements are also suitable, in
principle, for a non-conductive coupling and transmission. It is
essential that the data and energy transmission take place in a
contactless manner exclusively by field effects. As a result, all
electrically conductive elements are hermetically encapsulated, so
that they are nonsusceptible to all fluids in the patient 1 and can
be subjected to all the hygienic procedures practiced in routine
clinical practice, for example, washing in a dishwasher and/or
disinfection by wiping with aqueous preparations in a very simple
manner. In addition, advantages arise for electric safety, for
example, compatibility with defibrillators.
[0039] While specific embodiments of the invention have been shown
and described in detail to illustrate the application of the
principles of the invention, it will be understood that the
invention may be embodied otherwise without departing from such
principles.
* * * * *